rev 1 refactor for fitting rigidshape into the vehicle hierarchy.

cleaned a few, but by no means all redundancies.

DO NOTE THE FOLLOWING:

   ShapeBase::processTick(move);
    ShapeBase::interpolateTick(dt);

to avoid side effects for now. properly those would be retooled down the line to be more inheritance-friendly.

Engine/source/T3D/rigidShape.h

@@ -146,11 +146,6 @@ class RigidShape: public ShapeBase
    SimObjectPtr<ParticleEmitter> mDustTrailEmitter;
 
   protected:
-   enum CollisionFaceFlags 
-   {
-      BodyCollision =  BIT(0),
-      WheelCollision = BIT(1),
-   };
    enum MaskBits {
       PositionMask   = Parent::NextFreeMask << 0,
       EnergyMask     = Parent::NextFreeMask << 1,